Home / 335,960-503,940-138,968

Finding the Fourth Proportional to 335,960, 503,940 and 138,968

Calculator

Solution

The fourth proportional to 335,960, 503,940 and 138,968 is: 208,452

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,960 : 503,940 = 138,968 : x
  2. Step 2: Convert to fraction form
    335,960/503,940 = 138,968/x
  3. Step 3: Cross multiply
    335,960x = 503,940 × 138,968
  4. Step 4: Simplify right side
    335,960x = 70,031,533,920
  5. Step 5: Solve for x
    x = 70,031,533,920/335,960
  6. Step 6: Final answer
    x = 208,452

Related Problems

Find fourth proportional to 167,980, 251,970 and 69,484
Half scale
Find fourth proportional to 671,920, 1,007,880 and 277,936
Double scale
Find fourth proportional to 335,961, 503,941.50 and 138,969
Similar ratio
Find fourth proportional to 503,940, 755,910 and 208,452
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.